Submarine boat.



No. 883,040. PATENTED MAR. 24, 1908.

F- MOTT.

SUB-MARINE BOAT.

APPLICATION TILED 310.1907. RENEWED FEB. 10 1908- R SEBETS-SHEET 1.

wit" use:

v .1 I I t 4 I flu-Ma h PASIENTED MAR. 24, 1903.

F. MOTT SUBMABINE BOAT; APPLIOATIOH mm]; APBJNIQO'I. BEHEWED ms; 10,was,

PATENTE-D MAR: 24, 1908.

I 3 SHEETS-SHEET 3.

V mom atom MOTT. SUBMARINE BOAT. ul uouronfll lnnn APR. 20, 1907.RENEWED r32. 10, mos;

; na-ssaoiof UNITEDSTATES mutants, i n,Mamas;3:1,; g

" Specification 61 Lettersgr ate nt. r tnted maiche i, 190's.

. Application flied 1 m 20, 1907, Serial No. 369,302. Renewed February10, 1908. Serial no, 415, 34.

To all whom/it may concern;

have invented certain new and useful inrovements in Submarine Boats; andI do ereby. declare the followingt'o be a full,

clear, and exact description of the invention,

- such as; will enable others skilled in the artto which it appertainsto 'n ake' and use-the .Thi'sinventionrelates to new and usefulimprovementsih'life saving 'attachments'for subhjiarine boats for use'in coastand harbor .115 a provide meanswhereby air ma 7 defees, and itas a' primary object to atflany, time .desiredintocolla sible buoys,carried .by,-th e boatfwhen, it Is desired to yrais'e the-same' tothesurface, especially in cases 10f emergency whereby fresh air may; besuppliedto the crew at anytime de- Sll'fi. I.

The invention aims as a further, ob ect. to

provide a sub-marine boat embodying a novel construction, combinationandarrangement of arts, the details ofwhich will appear in t ecourse ofthe following desc'ription, wherein reference is hadto the accomp anyingdrawings forming a art of this specification, like characters 0reference designating similar'parts throughout the severalviews,'wherein:

Figure 1 is a side elevation of a submarine Y boat audits associatedpar-ts, constructed in accordance with'the present invention. Fig. 2 isa central vertical transverse sectional view of the body of the boat,showin more .xparticularly the colla sible buoys.

ig. 3 is a central longitridina I section similar to Fig. 2. Fig. 4 isan enlar ed side elevation of an automatically contrdlled air valve andits sustaining means. Fig; 5. is a central longitudinalsectional view ofsuch air valve.

Referring specifically to the aiwompanying drawin the numeral 1 desinate'sa cigar-shape "hull or body .prefera l constructed of metal toafford the require lightness and having its sides curved inwardly for a.portion of their depth, as at 2, as shown in Fig. 2, to afford seats forinflatable air bags 3,

. the latter being sustained by trap. doors 4, hinged at their loweredges as at 4, to the hul and overlying the curved sides2. The

doors 4 at their upper edges carry hin ed n5 boxes 6 provided 1n. t ,eor body-1 an bolts'5, which are pro'ecte through s'tu v v engaged withinsaid'hull or body Be it known that I, FRANK Mor'r, .acitizen I .of theUnitedStates, residing at Shabbona, in the county of Sam'lac, State ofMichi an,

e pumped v byiretainingnutsorcatches 7. i f

Air-is supplied to the hull 1 by means of a flexible hose 8.,which atitsupper end carries a sectional copper pipe 9'having air openings 10inits upper portion. The pipe 9 is formed with an internal valve seat 11,through which a stem 12 is projected, said stem at its .upperend'carrying an; air float 13, and at its 'lower'end a valve 14 designedto be raised into engagement with the seat 1 1, The pipe 91s fixed tobBsiIIiPOSBd upon an air tight bag 15through whichithe air hose 8 isprojected.

. in said hull has its end fixed to a reel 19, rotatable by afcrank 20.The. air hose 8 when not in use is confined in the locker 26 having atra door 22, hinged as at'23, to the hulll and ving bolts 24, projectedthrough stuffinglpxes in said hull and engagedby nutsor ohei l fasteningmeans 25." The door 22 is arrangeti above thelocker 26, -within which ismounted an air hose reel 27, operated by a crank 28. The locker 26 has atra door 29 closed by-a catch 29', within the ull for a purpose to bedescribed. The-reel 27 ohmprises a hollow shaft having a connection 21or the air hose 8. The outer end of he shaft or reel 27 is projectedthrough a stu g box 34 in the locker 26, and has connection by means ofa pifpe 26 with a manually operated air pump 35 om which leads aconductor 36, having connection with branches 37 leading to the severalbags 3 therein. The hull 1' is driven-by a engine .(not s own), and isguided by a rudder 40 of conventional form. The cable 17 propeller 39operated from an air hose 8, float-13 and bag 15 are desi ned to beconfined in the locker 26 when the oat is-not in use. The door 27 ofsaid locker is swung on its hinges to close the same-b a chain or cable42, working through a stu ng box 43.

In operatio'n,-it is assumed that the hull has descended-beneath thesurface of the water and that it is desired to supply fresh air to thecrew. In such cases, the trap door 29 is .flrst opened and the operativeparts then inspected. The trap door 29.is then closed and held by thecatch 29'. The fastenings 25 of thedoor 22 are then released openings10, will now flow into the hull.

that the parts are ready for use.

and said door is opened by water pressure, the water being pumped intothe locker 26 from within the hull by a pump 44 having suitableconnections. The float 13 will then rise to the surface closing thevalve 14 upon its seat 11 by means of the gravity of the suspendedparts. As the float 13 rises it carries the bag 15 therewith and tl elatter is next inflatedby air pumped through the hose 8 from the hulland admitted into the bag 15 through the checkyalve 1G, itbeingunderstood that the pump 35 is reversible for such use. The bag 15 wheninflated, rises partly above the surface of the water and elevates thefloat 13, at which time the latter will drop by gravity upon the upperedge of the pipe 9, thus forcing the valve 14 from its seat. The waterpreviously collected in said pipe through the through the pipe 8 andthus apprise the crew The pump 35 is now regulated to pump air from thesurface of the water through the pipe 8 into the hull, it beingunderstood that the manually controlled cook 41 carried by the conductor36 within the hull is opened to admit fresh air to the hull. to thesurface the pump 35 is regulated to force air through the branches 37 toinflate the bags 3. .Thesebags may be inflated by fresh air from thesurface, or by the foul air from the hull admitted through a pipe 36connected with thecock 41, it being understood that the pump35 may beregulated accordingly. Prior to inflating the bags?) it will beunderstood that the catches 7 are removed from within the hull and thatthe trap doors 4 are forced outwardly by the bags 3 as they areinflated. 'hen the bags 3 are sufficiently inflated the hull 1 will riseto the sur- Yhen it is desired to ascend face and as said hull rises thereels 19 and 27 are rotated to wind the respective cable 17 and air hose8 thereupon until the hull reaches the surface.

From the foregoing description it will be seen that simple and efficientmeans are provided'for' accomplishing the objects of the invention, but,while the elements herein shown and described are'well adapted to servethe functions set forth, it is obvious that various minor changes may bemade in the proportions, shape and arrangement of the several partswithout departing from the spirit and S00 e of the invention as definedin ble depending from said bag and projected.-

through said hull, a rigid pipe section connected to the upper end ofsaid hose and imposed on said last named bag, said pipe section havingair openings in the upper end thereof and an internal valve seat, a stemprojected through said valve seat, a valve on the lower end'of said stemanda float on theupper end of said stem.

in presence of two witnesses.

FRANK MOTT.

Witnesses T. M. MoELHlNNEY LYDIA A. MCELHINNEY.

In testimony whereof, I afiix my signature,

